[PATCH] 'detect' command to detect devices

[Sascha Hauer]

This adds a 'detect' callback for devices which can be used for
MMC/ATA/USB and maybe other stuff. See the first patch for details.

In short with this series we get a 'detect' command to trigger
a devices detect callback to detect SD/MMC cards. Currently only
SD/MMC is implemented, but this should also be used for USB/ATA
aswell later.

Sascha

----------------------------------------------------------------
Sascha Hauer (3):
      devices: add detect mechanism
      mci: implement detect driver callback
      mci fsl-esdhc: implement detect driver callback

 commands/Kconfig        |  9 +++++++
 commands/Makefile       |  1 +
 commands/detect.c       | 70 +++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/base/driver.c   |  7 +++++
 drivers/mci/imx-esdhc.c | 13 +++++++--
 drivers/mci/mci-core.c  | 21 +++++++++++++++
 include/driver.h        |  8 ++++++
 include/mci.h           |  6 +++--
 8 files changed, 131 insertions(+), 4 deletions(-)
 create mode 100644 commands/detect.c